FIRE Type Comparison: Lean, Regular, Fat, Coast, Barista Calculator

Calculate and compare FIRE numbers for different retirement styles. LeanFIRE (<$40K/year), RegularFIRE, FatFIRE (>$100K/year), CoastFIRE (let it grow), and BaristaFIRE (part-time income). Savings required, timeline, and asset allocation.

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